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libcfu/src/cfutime.c

80 lines
2.4 KiB
C

/*
* cfutime.c - This file is part of the libcfu library
*
* Copyright (c) 2005 Don Owens. All rights reserved.
*
* This code is released under the BSD license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of the author nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "cfu.h"
#include "cfutime.h"
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <sys/time.h>
typedef struct cfutime {
libcfu_type type;
struct timeval begin_tv;
struct timeval end_tv;
} cfutime;
cfutime_t *
cfutime_new(void) {
cfutime_t *time = calloc(1, sizeof(cfutime));
time->type = libcfu_t_time;
return time;
}
void
cfutime_begin(cfutime_t *time) {
gettimeofday(&(time->begin_tv), NULL);
}
void
cfutime_end(cfutime_t *time) {
gettimeofday(&(time->end_tv), NULL);
}
double
cfutime_elapsed(cfutime_t *time) {
return (double)time->end_tv.tv_sec + ((double)time->end_tv.tv_usec)/1000000 -
((double)time->begin_tv.tv_sec + ((double)time->begin_tv.tv_usec)/1000000);
}
void
cfutime_free(cfutime_t *time) {
free(time);
}